And unto Eber were born two sons: the name of one was Peleg; for in his days was the earth divided; and his brother’s name was Joktan.
Amazing what you'll find in the Bible.
Or NAsbU 1 Chronicles 1:19 Two sons were born to Eber, the name of the one was Peleg, for in his days the earth was divided, and his brother's name was Joktan.